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Related Experiment Videos

Needle aspiration of nonfunctioning parathyroid cysts.

R A Prinz1, J R Peters, J M Kane

  • 1Loyola University Stritch School of Medicine, Department of Surgery, Maywood, Illinois 60153.

The American Surgeon
|July 1, 1990
PubMed
Summary

Nonfunctioning parathyroid cysts often present as thyroid masses. Needle aspiration is a diagnostic and often curative treatment for these cysts, with high parathormone levels confirming diagnosis.

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Area of Science:

  • Endocrinology
  • Surgical Pathology
  • Diagnostic Imaging

Background:

  • Nonfunctioning parathyroid cysts were historically diagnosed intraoperatively for presumed thyroid masses.
  • Thyroid needle biopsy has advanced preoperative diagnosis and treatment options.

Purpose of the Study:

  • To review the diagnosis and treatment of nonfunctioning parathyroid cysts.
  • To evaluate needle aspiration as a diagnostic and therapeutic modality.

Main Methods:

  • Retrospective review of four patients with nonfunctioning parathyroid cysts over two years.
  • Analysis of patient demographics, cyst size, serum calcium/phosphorus levels, and parathyroid hormone (PTH) levels.
  • Evaluation of treatment outcomes following needle aspiration.

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Main Results:

  • Four patients (3 female, 1 male; age 28-70) presented with asymptomatic thyroid masses (3-5 cm).
  • Needle aspiration yielded 5-85 cc of fluid with significantly elevated C-terminal PTH (12,600–61,200 pg/ml) and N-terminal PTH (1,700 pg/ml).
  • Two patients achieved resolution with a single aspiration; one had a recurrence treated successfully with tetracycline, and another with reaspiration.

Conclusions:

  • Nonfunctioning parathyroid cysts manifest as thyroid masses.
  • Needle aspiration of fluid high in parathormone is diagnostic.
  • Aspiration is often the preferred therapeutic approach for these cysts.